The Flensburg English Classroom Corpus (FLECC) is a special corpus containing authentic classroom discourse. It consists of transcripts of 39 complete lessons of English as a foreign language taught in North German schools of diverse types: Grundschule, Hauptschule, Realschule, and Gesamtschule. This classroom corpus, which fills a gap in the field of TEFL research, will be introduced. A sample analysis of excerpts from a 5. Klasse English lesson will be provided. This way, some examples of the FLECC's use in academic EFL teacher training will be demonstrated and explained.